[SLING-4910] NPE in JCrResourceBundleProvider

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: i18n 2.4.4
• Fix Version/s: i18n 2.4.4
• Component/s: Extensions
• Assignee: Konrad Windszus
• Reporter: Chetan Mehrotra
• Created: 28/Jul/15 04:22
• Updated: 13/Aug/15 07:16
• Resolved: 28/Jul/15 15:41

Description

At fresh startup seeing couple of exceptions like below. Looks like by the time events are delivered ResourceResolverFactory is still not set (ResourceResolverFactory is missing. Cannot create ResourceResolver) which later causes NPE.

28.07.2015 09:37:49.803 *ERROR* [Thread-36] org.apache.sling.i18n.impl.JcrResourceBundleProvider getResourceResolver: ResourceResolverFactory is missing. Cannot create ResourceResolver
28.07.2015 09:37:49.804 *WARN* [Thread-36] org.apache.felix.eventadmin Service [org.apache.sling.i18n.impl.JcrResourceBundleProvider,160, [org.apache.sling.i18n.ResourceBundleProvider, org.osgi.service.event.EventHandler]] EventAdmin: Exception during event dispatch [org.osgi.service.event.Event [topic=org/apache/sling/api/resource/Resource/ADDED] | [org.apache.sling.i18n.ResourceBundleProvider, org.osgi.service.event.EventHandler] | Bundle(org.apache.sling.i18n [93])] (java.lang.NullPointerException)
java.lang.NullPointerException: null
	at org.apache.sling.i18n.impl.JcrResourceBundle.refreshSession(JcrResourceBundle.java:98)
	at org.apache.sling.i18n.impl.JcrResourceBundleProvider.isDictionaryResource(JcrResourceBundleProvider.java:250)
	at org.apache.sling.i18n.impl.JcrResourceBundleProvider.handleEvent(JcrResourceBundleProvider.java:229)
	at org.apache.felix.eventadmin.impl.handler.EventHandlerProxy.sendEvent(EventHandlerProxy.java:415)
	at org.apache.felix.eventadmin.impl.tasks.SyncDeliverTasks$1.run(SyncDeliverTasks.java:145)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)

Issue Links

• breaks: SLING-4944 JcrResourceBundleProvider: Potential race condition between setting the resourceResolver and using it